sound/pci/hda/hda_codec.c

   1 /*
   2  * Universal Interface for Intel High Definition Audio Codec
   3  *
   4  * Copyright (c) 2004 Takashi Iwai <tiwai@suse.de>
   5  *
   6  *
   7  *  This driver is free software; you can redistribute it and/or modify
   8  *  it under the terms of the GNU General Public License as published by
   9  *  the Free Software Foundation; either version 2 of the License, or
  10  *  (at your option) any later version.
  11  *
  12  *  This driver is distributed in the hope that it will be useful,
  13  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  20  */
  21
  22 #include <sound/driver.h>
  23 #include <linux/init.h>
  24 #include <linux/delay.h>
  25 #include <linux/slab.h>
  26 #include <linux/pci.h>
  27 #include <linux/mutex.h>
  28 #include <sound/core.h>
  29 #include "hda_codec.h"
  30 #include <sound/asoundef.h>
  31 #include <sound/tlv.h>
  32 #include <sound/initval.h>
  33 #include "hda_local.h"
  34
  35
  36 /*
  37  * vendor / preset table
  38  */
  39
  40 struct hda_vendor_id {
  41         unsigned int id;
  42         const char *name;
  43 };
  44
  45 /* codec vendor labels */
  46 static struct hda_vendor_id hda_vendor_ids[] = {
  47         { 0x10ec, "Realtek" },
  48         { 0x1057, "Motorola" },
  49         { 0x1106, "VIA" },
  50         { 0x11d4, "Analog Devices" },
  51         { 0x13f6, "C-Media" },
  52         { 0x14f1, "Conexant" },
  53         { 0x434d, "C-Media" },
  54         { 0x8384, "SigmaTel" },
  55         {} /* terminator */
  56 };
  57
  58 /* codec presets */
  59 #include "hda_patch.h"
  60
  61
  62 /**
  63  * snd_hda_codec_read - send a command and get the response
  64  * @codec: the HDA codec
  65  * @nid: NID to send the command
  66  * @direct: direct flag
  67  * @verb: the verb to send
  68  * @parm: the parameter for the verb
  69  *
  70  * Send a single command and read the corresponding response.
  71  *
  72  * Returns the obtained response value, or -1 for an error.
  73  */
  74 unsigned int snd_hda_codec_read(struct hda_codec *codec, hda_nid_t nid,
  75                                 int direct,
  76                                 unsigned int verb, unsigned int parm)
  77 {
  78         unsigned int res;
  79         mutex_lock(&codec->bus->cmd_mutex);
  80         if (!codec->bus->ops.command(codec, nid, direct, verb, parm))
  81                 res = codec->bus->ops.get_response(codec);
  82         else
  83                 res = (unsigned int)-1;
  84         mutex_unlock(&codec->bus->cmd_mutex);
  85         return res;
  86 }
  87
  88 /**
  89  * snd_hda_codec_write - send a single command without waiting for response
  90  * @codec: the HDA codec
  91  * @nid: NID to send the command
  92  * @direct: direct flag
  93  * @verb: the verb to send
  94  * @parm: the parameter for the verb
  95  *
  96  * Send a single command without waiting for response.
  97  *
  98  * Returns 0 if successful, or a negative error code.
  99  */
 100 int snd_hda_codec_write(struct hda_codec *codec, hda_nid_t nid, int direct,
 101                          unsigned int verb, unsigned int parm)
 102 {
 103         int err;
 104         mutex_lock(&codec->bus->cmd_mutex);
 105         err = codec->bus->ops.command(codec, nid, direct, verb, parm);
 106         mutex_unlock(&codec->bus->cmd_mutex);
 107         return err;
 108 }
 109
 110 /**
 111  * snd_hda_sequence_write - sequence writes
 112  * @codec: the HDA codec
 113  * @seq: VERB array to send
 114  *
 115  * Send the commands sequentially from the given array.
 116  * The array must be terminated with NID=0.
 117  */
 118 void snd_hda_sequence_write(struct hda_codec *codec, const struct hda_verb *seq)
 119 {
 120         for (; seq->nid; seq++)
 121                 snd_hda_codec_write(codec, seq->nid, 0, seq->verb, seq->param);
 122 }
 123
 124 /**
 125  * snd_hda_get_sub_nodes - get the range of sub nodes
 126  * @codec: the HDA codec
 127  * @nid: NID to parse
 128  * @start_id: the pointer to store the start NID
 129  *
 130  * Parse the NID and store the start NID of its sub-nodes.
 131  * Returns the number of sub-nodes.
 132  */
 133 int snd_hda_get_sub_nodes(struct hda_codec *codec, hda_nid_t nid,
 134                           hda_nid_t *start_id)
 135 {
 136         unsigned int parm;
 137
 138         parm = snd_hda_param_read(codec, nid, AC_PAR_NODE_COUNT);
 139         *start_id = (parm >> 16) & 0x7fff;
 140         return (int)(parm & 0x7fff);
 141 }
 142
 143 /**
 144  * snd_hda_get_connections - get connection list
 145  * @codec: the HDA codec
 146  * @nid: NID to parse
 147  * @conn_list: connection list array
 148  * @max_conns: max. number of connections to store
 149  *
 150  * Parses the connection list of the given widget and stores the list
 151  * of NIDs.
 152  *
 153  * Returns the number of connections, or a negative error code.
 154  */
 155 int snd_hda_get_connections(struct hda_codec *codec, hda_nid_t nid,
 156                             hda_nid_t *conn_list, int max_conns)
 157 {
 158         unsigned int parm;
 159         int i, conn_len, conns;
 160         unsigned int shift, num_elems, mask;
 161         hda_nid_t prev_nid;
 162
 163         snd_assert(conn_list && max_conns > 0, return -EINVAL);
 164
 165         parm = snd_hda_param_read(codec, nid, AC_PAR_CONNLIST_LEN);
 166         if (parm & AC_CLIST_LONG) {
 167                 /* long form */
 168                 shift = 16;
 169                 num_elems = 2;
 170         } else {
 171                 /* short form */
 172                 shift = 8;
 173                 num_elems = 4;
 174         }
 175         conn_len = parm & AC_CLIST_LENGTH;
 176         mask = (1 << (shift-1)) - 1;
 177
 178         if (!conn_len)
 179                 return 0; /* no connection */
 180
 181         if (conn_len == 1) {
 182                 /* single connection */
 183                 parm = snd_hda_codec_read(codec, nid, 0,
 184                                           AC_VERB_GET_CONNECT_LIST, 0);
 185                 conn_list[0] = parm & mask;
 186                 return 1;
 187         }
 188
 189         /* multi connection */
 190         conns = 0;
 191         prev_nid = 0;
 192         for (i = 0; i < conn_len; i++) {
 193                 int range_val;
 194                 hda_nid_t val, n;
 195
 196                 if (i % num_elems == 0)
 197                         parm = snd_hda_codec_read(codec, nid, 0,
 198                                                   AC_VERB_GET_CONNECT_LIST, i);
 199                 range_val = !!(parm & (1 << (shift-1))); /* ranges */
 200                 val = parm & mask;
 201                 parm >>= shift;
 202                 if (range_val) {
 203                         /* ranges between the previous and this one */
 204                         if (!prev_nid || prev_nid >= val) {
 205                                 snd_printk(KERN_WARNING "hda_codec: "
 206                                            "invalid dep_range_val %x:%x\n",
 207                                            prev_nid, val);
 208                                 continue;
 209                         }
 210                         for (n = prev_nid + 1; n <= val; n++) {
 211                                 if (conns >= max_conns) {
 212                                         snd_printk(KERN_ERR
 213                                                    "Too many connections\n");
 214                                         return -EINVAL;
 215                                 }
 216                                 conn_list[conns++] = n;
 217                         }
 218                 } else {
 219                         if (conns >= max_conns) {
 220                                 snd_printk(KERN_ERR "Too many connections\n");
 221                                 return -EINVAL;
 222                         }
 223                         conn_list[conns++] = val;
 224                 }
 225                 prev_nid = val;
 226         }
 227         return conns;
 228 }
 229
 230
 231 /**
 232  * snd_hda_queue_unsol_event - add an unsolicited event to queue
 233  * @bus: the BUS
 234  * @res: unsolicited event (lower 32bit of RIRB entry)
 235  * @res_ex: codec addr and flags (upper 32bit or RIRB entry)
 236  *
 237  * Adds the given event to the queue.  The events are processed in
 238  * the workqueue asynchronously.  Call this function in the interrupt
 239  * hanlder when RIRB receives an unsolicited event.
 240  *
 241  * Returns 0 if successful, or a negative error code.
 242  */
 243 int snd_hda_queue_unsol_event(struct hda_bus *bus, u32 res, u32 res_ex)
 244 {
 245         struct hda_bus_unsolicited *unsol;
 246         unsigned int wp;
 247
 248         unsol = bus->unsol;
 249         if (!unsol)
 250                 return 0;
 251
 252         wp = (unsol->wp + 1) % HDA_UNSOL_QUEUE_SIZE;
 253         unsol->wp = wp;
 254
 255         wp <<= 1;
 256         unsol->queue[wp] = res;
 257         unsol->queue[wp + 1] = res_ex;
 258
 259         schedule_work(&unsol->work);
 260
 261         return 0;
 262 }
 263
 264 /*
 265  * process queueud unsolicited events
 266  */
 267 static void process_unsol_events(struct work_struct *work)
 268 {
 269         struct hda_bus_unsolicited *unsol =
 270                 container_of(work, struct hda_bus_unsolicited, work);
 271         struct hda_bus *bus = unsol->bus;
 272         struct hda_codec *codec;
 273         unsigned int rp, caddr, res;
 274
 275         while (unsol->rp != unsol->wp) {
 276                 rp = (unsol->rp + 1) % HDA_UNSOL_QUEUE_SIZE;
 277                 unsol->rp = rp;
 278                 rp <<= 1;
 279                 res = unsol->queue[rp];
 280                 caddr = unsol->queue[rp + 1];
 281                 if (!(caddr & (1 << 4))) /* no unsolicited event? */
 282                         continue;
 283                 codec = bus->caddr_tbl[caddr & 0x0f];
 284                 if (codec && codec->patch_ops.unsol_event)
 285                         codec->patch_ops.unsol_event(codec, res);
 286         }
 287 }
 288
 289 /*
 290  * initialize unsolicited queue
 291  */
 292 static int __devinit init_unsol_queue(struct hda_bus *bus)
 293 {
 294         struct hda_bus_unsolicited *unsol;
 295
 296         if (bus->unsol) /* already initialized */
 297                 return 0;
 298
 299         unsol = kzalloc(sizeof(*unsol), GFP_KERNEL);
 300         if (!unsol) {
 301                 snd_printk(KERN_ERR "hda_codec: "
 302                            "can't allocate unsolicited queue\n");
 303                 return -ENOMEM;
 304         }
 305         INIT_WORK(&unsol->work, process_unsol_events);
 306         unsol->bus = bus;
 307         bus->unsol = unsol;
 308         return 0;
 309 }
 310
 311 /*
 312  * destructor
 313  */
 314 static void snd_hda_codec_free(struct hda_codec *codec);
 315
 316 static int snd_hda_bus_free(struct hda_bus *bus)
 317 {
 318         struct hda_codec *codec, *n;
 319
 320         if (!bus)
 321                 return 0;
 322         if (bus->unsol) {
 323                 flush_scheduled_work();
 324                 kfree(bus->unsol);
 325         }
 326         list_for_each_entry_safe(codec, n, &bus->codec_list, list) {
 327                 snd_hda_codec_free(codec);
 328         }
 329         if (bus->ops.private_free)
 330                 bus->ops.private_free(bus);
 331         kfree(bus);
 332         return 0;
 333 }
 334
 335 static int snd_hda_bus_dev_free(struct snd_device *device)
 336 {
 337         struct hda_bus *bus = device->device_data;
 338         return snd_hda_bus_free(bus);
 339 }
 340
 341 /**
 342  * snd_hda_bus_new - create a HDA bus
 343  * @card: the card entry
 344  * @temp: the template for hda_bus information
 345  * @busp: the pointer to store the created bus instance
 346  *
 347  * Returns 0 if successful, or a negative error code.
 348  */
 349 int __devinit snd_hda_bus_new(struct snd_card *card,
 350                               const struct hda_bus_template *temp,
 351                               struct hda_bus **busp)
 352 {
 353         struct hda_bus *bus;
 354         int err;
 355         static struct snd_device_ops dev_ops = {
 356                 .dev_free = snd_hda_bus_dev_free,
 357         };
 358
 359         snd_assert(temp, return -EINVAL);
 360         snd_assert(temp->ops.command && temp->ops.get_response, return -EINVAL);
 361
 362         if (busp)
 363                 *busp = NULL;
 364
 365         bus = kzalloc(sizeof(*bus), GFP_KERNEL);
 366         if (bus == NULL) {
 367                 snd_printk(KERN_ERR "can't allocate struct hda_bus\n");
 368                 return -ENOMEM;
 369         }
 370
 371         bus->card = card;
 372         bus->private_data = temp->private_data;
 373         bus->pci = temp->pci;
 374         bus->modelname = temp->modelname;
 375         bus->ops = temp->ops;
 376
 377         mutex_init(&bus->cmd_mutex);
 378         INIT_LIST_HEAD(&bus->codec_list);
 379
 380         err = snd_device_new(card, SNDRV_DEV_BUS, bus, &dev_ops);
 381         if (err < 0) {
 382                 snd_hda_bus_free(bus);
 383                 return err;
 384         }
 385         if (busp)
 386                 *busp = bus;
 387         return 0;
 388 }
 389
 390 /*
 391  * find a matching codec preset
 392  */
 393 static const struct hda_codec_preset __devinit *
 394 find_codec_preset(struct hda_codec *codec)
 395 {
 396         const struct hda_codec_preset **tbl, *preset;
 397
 398         if (codec->bus->modelname && !strcmp(codec->bus->modelname, "generic"))
 399                 return NULL; /* use the generic parser */
 400
 401         for (tbl = hda_preset_tables; *tbl; tbl++) {
 402                 for (preset = *tbl; preset->id; preset++) {
 403                         u32 mask = preset->mask;
 404                         if (!mask)
 405                                 mask = ~0;
 406                         if (preset->id == (codec->vendor_id & mask) &&
 407                             (!preset->rev ||
 408                              preset->rev == codec->revision_id))
 409                                 return preset;
 410                 }
 411         }
 412         return NULL;
 413 }
 414
 415 /*
 416  * snd_hda_get_codec_name - store the codec name
 417  */
 418 void snd_hda_get_codec_name(struct hda_codec *codec,
 419                             char *name, int namelen)
 420 {
 421         const struct hda_vendor_id *c;
 422         const char *vendor = NULL;
 423         u16 vendor_id = codec->vendor_id >> 16;
 424         char tmp[16];
 425
 426         for (c = hda_vendor_ids; c->id; c++) {
 427                 if (c->id == vendor_id) {
 428                         vendor = c->name;
 429                         break;
 430                 }
 431         }
 432         if (!vendor) {
 433                 sprintf(tmp, "Generic %04x", vendor_id);
 434                 vendor = tmp;
 435         }
 436         if (codec->preset && codec->preset->name)
 437                 snprintf(name, namelen, "%s %s", vendor, codec->preset->name);
 438         else
 439                 snprintf(name, namelen, "%s ID %x", vendor,
 440                          codec->vendor_id & 0xffff);
 441 }
 442
 443 /*
 444  * look for an AFG and MFG nodes
 445  */
 446 static void __devinit setup_fg_nodes(struct hda_codec *codec)
 447 {
 448         int i, total_nodes;
 449         hda_nid_t nid;
 450
 451         total_nodes = snd_hda_get_sub_nodes(codec, AC_NODE_ROOT, &nid);
 452         for (i = 0; i < total_nodes; i++, nid++) {
 453                 unsigned int func;
 454                 func = snd_hda_param_read(codec, nid, AC_PAR_FUNCTION_TYPE);
 455                 switch (func & 0xff) {
 456                 case AC_GRP_AUDIO_FUNCTION:
 457                         codec->afg = nid;
 458                         break;
 459                 case AC_GRP_MODEM_FUNCTION:
 460                         codec->mfg = nid;
 461                         break;
 462                 default:
 463                         break;
 464                 }
 465         }
 466 }
 467
 468 /*
 469  * read widget caps for each widget and store in cache
 470  */
 471 static int read_widget_caps(struct hda_codec *codec, hda_nid_t fg_node)
 472 {
 473         int i;
 474         hda_nid_t nid;
 475
 476         codec->num_nodes = snd_hda_get_sub_nodes(codec, fg_node,
 477                                                  &codec->start_nid);
 478         codec->wcaps = kmalloc(codec->num_nodes * 4, GFP_KERNEL);
 479         if (!codec->wcaps)
 480                 return -ENOMEM;
 481         nid = codec->start_nid;
 482         for (i = 0; i < codec->num_nodes; i++, nid++)
 483                 codec->wcaps[i] = snd_hda_param_read(codec, nid,
 484                                                      AC_PAR_AUDIO_WIDGET_CAP);
 485         return 0;
 486 }
 487
 488
 489 /*
 490  * codec destructor
 491  */
 492 static void snd_hda_codec_free(struct hda_codec *codec)
 493 {
 494         if (!codec)
 495                 return;
 496         list_del(&codec->list);
 497         codec->bus->caddr_tbl[codec->addr] = NULL;
 498         if (codec->patch_ops.free)
 499                 codec->patch_ops.free(codec);
 500         kfree(codec->amp_info);
 501         kfree(codec->wcaps);
 502         kfree(codec);
 503 }
 504
 505 static void init_amp_hash(struct hda_codec *codec);
 506
 507 /**
 508  * snd_hda_codec_new - create a HDA codec
 509  * @bus: the bus to assign
 510  * @codec_addr: the codec address
 511  * @codecp: the pointer to store the generated codec
 512  *
 513  * Returns 0 if successful, or a negative error code.
 514  */
 515 int __devinit snd_hda_codec_new(struct hda_bus *bus, unsigned int codec_addr,
 516                                 struct hda_codec **codecp)
 517 {
 518         struct hda_codec *codec;
 519         char component[13];
 520         int err;
 521
 522         snd_assert(bus, return -EINVAL);
 523         snd_assert(codec_addr <= HDA_MAX_CODEC_ADDRESS, return -EINVAL);
 524
 525         if (bus->caddr_tbl[codec_addr]) {
 526                 snd_printk(KERN_ERR "hda_codec: "
 527                            "address 0x%x is already occupied\n", codec_addr);
 528                 return -EBUSY;
 529         }
 530
 531         codec = kzalloc(sizeof(*codec), GFP_KERNEL);
 532         if (codec == NULL) {
 533                 snd_printk(KERN_ERR "can't allocate struct hda_codec\n");
 534                 return -ENOMEM;
 535         }
 536
 537         codec->bus = bus;
 538         codec->addr = codec_addr;
 539         mutex_init(&codec->spdif_mutex);
 540         init_amp_hash(codec);
 541
 542         list_add_tail(&codec->list, &bus->codec_list);
 543         bus->caddr_tbl[codec_addr] = codec;
 544
 545         codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 546                                               AC_PAR_VENDOR_ID);
 547         if (codec->vendor_id == -1)
 548                 /* read again, hopefully the access method was corrected
 549                  * in the last read...
 550                  */
 551                 codec->vendor_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 552                                                       AC_PAR_VENDOR_ID);
 553         codec->subsystem_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 554                                                  AC_PAR_SUBSYSTEM_ID);
 555         codec->revision_id = snd_hda_param_read(codec, AC_NODE_ROOT,
 556                                                 AC_PAR_REV_ID);
 557
 558         setup_fg_nodes(codec);
 559         if (!codec->afg && !codec->mfg) {
 560                 snd_printdd("hda_codec: no AFG or MFG node found\n");
 561                 snd_hda_codec_free(codec);
 562                 return -ENODEV;
 563         }
 564
 565         if (read_widget_caps(codec, codec->afg ? codec->afg : codec->mfg) < 0) {
 566                 snd_printk(KERN_ERR "hda_codec: cannot malloc\n");
 567                 snd_hda_codec_free(codec);
 568                 return -ENOMEM;
 569         }
 570
 571         if (!codec->subsystem_id) {
 572                 hda_nid_t nid = codec->afg ? codec->afg : codec->mfg;
 573                 codec->subsystem_id =
 574                         snd_hda_codec_read(codec, nid, 0,
 575                                            AC_VERB_GET_SUBSYSTEM_ID, 0);
 576         }
 577
 578         codec->preset = find_codec_preset(codec);
 579         /* audio codec should override the mixer name */
 580         if (codec->afg || !*bus->card->mixername)
 581                 snd_hda_get_codec_name(codec, bus->card->mixername,
 582                                        sizeof(bus->card->mixername));
 583
 584         if (codec->preset && codec->preset->patch)
 585                 err = codec->preset->patch(codec);
 586         else
 587                 err = snd_hda_parse_generic_codec(codec);
 588         if (err < 0) {
 589                 snd_hda_codec_free(codec);
 590                 return err;
 591         }
 592
 593         if (codec->patch_ops.unsol_event)
 594                 init_unsol_queue(bus);
 595
 596         snd_hda_codec_proc_new(codec);
 597
 598         sprintf(component, "HDA:%08x", codec->vendor_id);
 599         snd_component_add(codec->bus->card, component);
 600
 601         if (codecp)
 602                 *codecp = codec;
 603         return 0;
 604 }
 605
 606 /**
 607  * snd_hda_codec_setup_stream - set up the codec for streaming
 608  * @codec: the CODEC to set up
 609  * @nid: the NID to set up
 610  * @stream_tag: stream tag to pass, it's between 0x1 and 0xf.
 611  * @channel_id: channel id to pass, zero based.
 612  * @format: stream format.
 613  */
 614 void snd_hda_codec_setup_stream(struct hda_codec *codec, hda_nid_t nid,
 615                                 u32 stream_tag,
 616                                 int channel_id, int format)
 617 {
 618         if (!nid)
 619                 return;
 620
 621         snd_printdd("hda_codec_setup_stream: "
 622                     "NID=0x%x, stream=0x%x, channel=%d, format=0x%x\n",
 623                     nid, stream_tag, channel_id, format);
 624         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CHANNEL_STREAMID,
 625                             (stream_tag << 4) | channel_id);
 626         msleep(1);
 627         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_STREAM_FORMAT, format);
 628 }
 629
 630 /*
 631  * amp access functions
 632  */
 633
 634 /* FIXME: more better hash key? */
 635 #define HDA_HASH_KEY(nid,dir,idx) (u32)((nid) + ((idx) << 16) + ((dir) << 24))
 636 #define INFO_AMP_CAPS   (1<<0)
 637 #define INFO_AMP_VOL(ch)        (1 << (1 + (ch)))
 638
 639 /* initialize the hash table */
 640 static void __devinit init_amp_hash(struct hda_codec *codec)
 641 {
 642         memset(codec->amp_hash, 0xff, sizeof(codec->amp_hash));
 643         codec->num_amp_entries = 0;
 644         codec->amp_info_size = 0;
 645         codec->amp_info = NULL;
 646 }
 647
 648 /* query the hash.  allocate an entry if not found. */
 649 static struct hda_amp_info *get_alloc_amp_hash(struct hda_codec *codec, u32 key)
 650 {
 651         u16 idx = key % (u16)ARRAY_SIZE(codec->amp_hash);
 652         u16 cur = codec->amp_hash[idx];
 653         struct hda_amp_info *info;
 654
 655         while (cur != 0xffff) {
 656                 info = &codec->amp_info[cur];
 657                 if (info->key == key)
 658                         return info;
 659                 cur = info->next;
 660         }
 661
 662         /* add a new hash entry */
 663         if (codec->num_amp_entries >= codec->amp_info_size) {
 664                 /* reallocate the array */
 665                 int new_size = codec->amp_info_size + 64;
 666                 struct hda_amp_info *new_info;
 667                 new_info = kcalloc(new_size, sizeof(struct hda_amp_info),
 668                                    GFP_KERNEL);
 669                 if (!new_info) {
 670                         snd_printk(KERN_ERR "hda_codec: "
 671                                    "can't malloc amp_info\n");
 672                         return NULL;
 673                 }
 674                 if (codec->amp_info) {
 675                         memcpy(new_info, codec->amp_info,
 676                                codec->amp_info_size *
 677                                sizeof(struct hda_amp_info));
 678                         kfree(codec->amp_info);
 679                 }
 680                 codec->amp_info_size = new_size;
 681                 codec->amp_info = new_info;
 682         }
 683         cur = codec->num_amp_entries++;
 684         info = &codec->amp_info[cur];
 685         info->key = key;
 686         info->status = 0; /* not initialized yet */
 687         info->next = codec->amp_hash[idx];
 688         codec->amp_hash[idx] = cur;
 689
 690         return info;
 691 }
 692
 693 /*
 694  * query AMP capabilities for the given widget and direction
 695  */
 696 static u32 query_amp_caps(struct hda_codec *codec, hda_nid_t nid, int direction)
 697 {
 698         struct hda_amp_info *info;
 699
 700         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, 0));
 701         if (!info)
 702                 return 0;
 703         if (!(info->status & INFO_AMP_CAPS)) {
 704                 if (!(get_wcaps(codec, nid) & AC_WCAP_AMP_OVRD))
 705                         nid = codec->afg;
 706                 info->amp_caps = snd_hda_param_read(codec, nid,
 707                                                     direction == HDA_OUTPUT ?
 708                                                     AC_PAR_AMP_OUT_CAP :
 709                                                     AC_PAR_AMP_IN_CAP);
 710                 if (info->amp_caps)
 711                         info->status |= INFO_AMP_CAPS;
 712         }
 713         return info->amp_caps;
 714 }
 715
 716 int snd_hda_override_amp_caps(struct hda_codec *codec, hda_nid_t nid, int dir,
 717                               unsigned int caps)
 718 {
 719         struct hda_amp_info *info;
 720
 721         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, dir, 0));
 722         if (!info)
 723                 return -EINVAL;
 724         info->amp_caps = caps;
 725         info->status |= INFO_AMP_CAPS;
 726         return 0;
 727 }
 728
 729 /*
 730  * read the current volume to info
 731  * if the cache exists, read the cache value.
 732  */
 733 static unsigned int get_vol_mute(struct hda_codec *codec,
 734                                  struct hda_amp_info *info, hda_nid_t nid,
 735                                  int ch, int direction, int index)
 736 {
 737         u32 val, parm;
 738
 739         if (info->status & INFO_AMP_VOL(ch))
 740                 return info->vol[ch];
 741
 742         parm = ch ? AC_AMP_GET_RIGHT : AC_AMP_GET_LEFT;
 743         parm |= direction == HDA_OUTPUT ? AC_AMP_GET_OUTPUT : AC_AMP_GET_INPUT;
 744         parm |= index;
 745         val = snd_hda_codec_read(codec, nid, 0,
 746                                  AC_VERB_GET_AMP_GAIN_MUTE, parm);
 747         info->vol[ch] = val & 0xff;
 748         info->status |= INFO_AMP_VOL(ch);
 749         return info->vol[ch];
 750 }
 751
 752 /*
 753  * write the current volume in info to the h/w and update the cache
 754  */
 755 static void put_vol_mute(struct hda_codec *codec, struct hda_amp_info *info,
 756                          hda_nid_t nid, int ch, int direction, int index,
 757                          int val)
 758 {
 759         u32 parm;
 760
 761         parm = ch ? AC_AMP_SET_RIGHT : AC_AMP_SET_LEFT;
 762         parm |= direction == HDA_OUTPUT ? AC_AMP_SET_OUTPUT : AC_AMP_SET_INPUT;
 763         parm |= index << AC_AMP_SET_INDEX_SHIFT;
 764         parm |= val;
 765         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_AMP_GAIN_MUTE, parm);
 766         info->vol[ch] = val;
 767 }
 768
 769 /*
 770  * read AMP value.  The volume is between 0 to 0x7f, 0x80 = mute bit.
 771  */
 772 int snd_hda_codec_amp_read(struct hda_codec *codec, hda_nid_t nid, int ch,
 773                            int direction, int index)
 774 {
 775         struct hda_amp_info *info;
 776         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, index));
 777         if (!info)
 778                 return 0;
 779         return get_vol_mute(codec, info, nid, ch, direction, index);
 780 }
 781
 782 /*
 783  * update the AMP value, mask = bit mask to set, val = the value
 784  */
 785 int snd_hda_codec_amp_update(struct hda_codec *codec, hda_nid_t nid, int ch,
 786                              int direction, int idx, int mask, int val)
 787 {
 788         struct hda_amp_info *info;
 789
 790         info = get_alloc_amp_hash(codec, HDA_HASH_KEY(nid, direction, idx));
 791         if (!info)
 792                 return 0;
 793         val &= mask;
 794         val |= get_vol_mute(codec, info, nid, ch, direction, idx) & ~mask;
 795         if (info->vol[ch] == val && !codec->in_resume)
 796                 return 0;
 797         put_vol_mute(codec, info, nid, ch, direction, idx, val);
 798         return 1;
 799 }
 800
 801
 802 /*
 803  * AMP control callbacks
 804  */
 805 /* retrieve parameters from private_value */
 806 #define get_amp_nid(kc)         ((kc)->private_value & 0xffff)
 807 #define get_amp_channels(kc)    (((kc)->private_value >> 16) & 0x3)
 808 #define get_amp_direction(kc)   (((kc)->private_value >> 18) & 0x1)
 809 #define get_amp_index(kc)       (((kc)->private_value >> 19) & 0xf)
 810
 811 /* volume */
 812 int snd_hda_mixer_amp_volume_info(struct snd_kcontrol *kcontrol,
 813                                   struct snd_ctl_elem_info *uinfo)
 814 {
 815         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 816         u16 nid = get_amp_nid(kcontrol);
 817         u8 chs = get_amp_channels(kcontrol);
 818         int dir = get_amp_direction(kcontrol);
 819         u32 caps;
 820
 821         caps = query_amp_caps(codec, nid, dir);
 822         /* num steps */
 823         caps = (caps & AC_AMPCAP_NUM_STEPS) >> AC_AMPCAP_NUM_STEPS_SHIFT;
 824         if (!caps) {
 825                 printk(KERN_WARNING "hda_codec: "
 826                        "num_steps = 0 for NID=0x%x\n", nid);
 827                 return -EINVAL;
 828         }
 829         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 830         uinfo->count = chs == 3 ? 2 : 1;
 831         uinfo->value.integer.min = 0;
 832         uinfo->value.integer.max = caps;
 833         return 0;
 834 }
 835
 836 int snd_hda_mixer_amp_volume_get(struct snd_kcontrol *kcontrol,
 837                                  struct snd_ctl_elem_value *ucontrol)
 838 {
 839         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 840         hda_nid_t nid = get_amp_nid(kcontrol);
 841         int chs = get_amp_channels(kcontrol);
 842         int dir = get_amp_direction(kcontrol);
 843         int idx = get_amp_index(kcontrol);
 844         long *valp = ucontrol->value.integer.value;
 845
 846         if (chs & 1)
 847                 *valp++ = snd_hda_codec_amp_read(codec, nid, 0, dir, idx) & 0x7f;
 848         if (chs & 2)
 849                 *valp = snd_hda_codec_amp_read(codec, nid, 1, dir, idx) & 0x7f;
 850         return 0;
 851 }
 852
 853 int snd_hda_mixer_amp_volume_put(struct snd_kcontrol *kcontrol,
 854                                  struct snd_ctl_elem_value *ucontrol)
 855 {
 856         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 857         hda_nid_t nid = get_amp_nid(kcontrol);
 858         int chs = get_amp_channels(kcontrol);
 859         int dir = get_amp_direction(kcontrol);
 860         int idx = get_amp_index(kcontrol);
 861         long *valp = ucontrol->value.integer.value;
 862         int change = 0;
 863
 864         if (chs & 1) {
 865                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 866                                                   0x7f, *valp);
 867                 valp++;
 868         }
 869         if (chs & 2)
 870                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 871                                                    0x7f, *valp);
 872         return change;
 873 }
 874
 875 int snd_hda_mixer_amp_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 876                           unsigned int size, unsigned int __user *_tlv)
 877 {
 878         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 879         hda_nid_t nid = get_amp_nid(kcontrol);
 880         int dir = get_amp_direction(kcontrol);
 881         u32 caps, val1, val2;
 882
 883         if (size < 4 * sizeof(unsigned int))
 884                 return -ENOMEM;
 885         caps = query_amp_caps(codec, nid, dir);
 886         val2 = (caps & AC_AMPCAP_STEP_SIZE) >> AC_AMPCAP_STEP_SIZE_SHIFT;
 887         val2 = (val2 + 1) * 25;
 888         val1 = -((caps & AC_AMPCAP_OFFSET) >> AC_AMPCAP_OFFSET_SHIFT);
 889         val1 = ((int)val1) * ((int)val2);
 890         if (put_user(SNDRV_CTL_TLVT_DB_SCALE, _tlv))
 891                 return -EFAULT;
 892         if (put_user(2 * sizeof(unsigned int), _tlv + 1))
 893                 return -EFAULT;
 894         if (put_user(val1, _tlv + 2))
 895                 return -EFAULT;
 896         if (put_user(val2, _tlv + 3))
 897                 return -EFAULT;
 898         return 0;
 899 }
 900
 901 /* switch */
 902 int snd_hda_mixer_amp_switch_info(struct snd_kcontrol *kcontrol,
 903                                   struct snd_ctl_elem_info *uinfo)
 904 {
 905         int chs = get_amp_channels(kcontrol);
 906
 907         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
 908         uinfo->count = chs == 3 ? 2 : 1;
 909         uinfo->value.integer.min = 0;
 910         uinfo->value.integer.max = 1;
 911         return 0;
 912 }
 913
 914 int snd_hda_mixer_amp_switch_get(struct snd_kcontrol *kcontrol,
 915                                  struct snd_ctl_elem_value *ucontrol)
 916 {
 917         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 918         hda_nid_t nid = get_amp_nid(kcontrol);
 919         int chs = get_amp_channels(kcontrol);
 920         int dir = get_amp_direction(kcontrol);
 921         int idx = get_amp_index(kcontrol);
 922         long *valp = ucontrol->value.integer.value;
 923
 924         if (chs & 1)
 925                 *valp++ = (snd_hda_codec_amp_read(codec, nid, 0, dir, idx) &
 926                            0x80) ? 0 : 1;
 927         if (chs & 2)
 928                 *valp = (snd_hda_codec_amp_read(codec, nid, 1, dir, idx) &
 929                          0x80) ? 0 : 1;
 930         return 0;
 931 }
 932
 933 int snd_hda_mixer_amp_switch_put(struct snd_kcontrol *kcontrol,
 934                                  struct snd_ctl_elem_value *ucontrol)
 935 {
 936         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 937         hda_nid_t nid = get_amp_nid(kcontrol);
 938         int chs = get_amp_channels(kcontrol);
 939         int dir = get_amp_direction(kcontrol);
 940         int idx = get_amp_index(kcontrol);
 941         long *valp = ucontrol->value.integer.value;
 942         int change = 0;
 943
 944         if (chs & 1) {
 945                 change = snd_hda_codec_amp_update(codec, nid, 0, dir, idx,
 946                                                   0x80, *valp ? 0 : 0x80);
 947                 valp++;
 948         }
 949         if (chs & 2)
 950                 change |= snd_hda_codec_amp_update(codec, nid, 1, dir, idx,
 951                                                    0x80, *valp ? 0 : 0x80);
 952
 953         return change;
 954 }
 955
 956 /*
 957  * bound volume controls
 958  *
 959  * bind multiple volumes (# indices, from 0)
 960  */
 961
 962 #define AMP_VAL_IDX_SHIFT       19
 963 #define AMP_VAL_IDX_MASK        (0x0f<<19)
 964
 965 int snd_hda_mixer_bind_switch_get(struct snd_kcontrol *kcontrol,
 966                                   struct snd_ctl_elem_value *ucontrol)
 967 {
 968         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 969         unsigned long pval;
 970         int err;
 971
 972         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 973         pval = kcontrol->private_value;
 974         kcontrol->private_value = pval & ~AMP_VAL_IDX_MASK; /* index 0 */
 975         err = snd_hda_mixer_amp_switch_get(kcontrol, ucontrol);
 976         kcontrol->private_value = pval;
 977         mutex_unlock(&codec->spdif_mutex);
 978         return err;
 979 }
 980
 981 int snd_hda_mixer_bind_switch_put(struct snd_kcontrol *kcontrol,
 982                                   struct snd_ctl_elem_value *ucontrol)
 983 {
 984         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
 985         unsigned long pval;
 986         int i, indices, err = 0, change = 0;
 987
 988         mutex_lock(&codec->spdif_mutex); /* reuse spdif_mutex */
 989         pval = kcontrol->private_value;
 990         indices = (pval & AMP_VAL_IDX_MASK) >> AMP_VAL_IDX_SHIFT;
 991         for (i = 0; i < indices; i++) {
 992                 kcontrol->private_value = (pval & ~AMP_VAL_IDX_MASK) |
 993                         (i << AMP_VAL_IDX_SHIFT);
 994                 err = snd_hda_mixer_amp_switch_put(kcontrol, ucontrol);
 995                 if (err < 0)
 996                         break;
 997                 change |= err;
 998         }
 999         kcontrol->private_value = pval;
1000         mutex_unlock(&codec->spdif_mutex);
1001         return err < 0 ? err : change;
1002 }
1003
1004 /*
1005  * SPDIF out controls
1006  */
1007
1008 static int snd_hda_spdif_mask_info(struct snd_kcontrol *kcontrol,
1009                                    struct snd_ctl_elem_info *uinfo)
1010 {
1011         uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958;
1012         uinfo->count = 1;
1013         return 0;
1014 }
1015
1016 static int snd_hda_spdif_cmask_get(struct snd_kcontrol *kcontrol,
1017                                    struct snd_ctl_elem_value *ucontrol)
1018 {
1019         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1020                                            IEC958_AES0_NONAUDIO |
1021                                            IEC958_AES0_CON_EMPHASIS_5015 |
1022                                            IEC958_AES0_CON_NOT_COPYRIGHT;
1023         ucontrol->value.iec958.status[1] = IEC958_AES1_CON_CATEGORY |
1024                                            IEC958_AES1_CON_ORIGINAL;
1025         return 0;
1026 }
1027
1028 static int snd_hda_spdif_pmask_get(struct snd_kcontrol *kcontrol,
1029                                    struct snd_ctl_elem_value *ucontrol)
1030 {
1031         ucontrol->value.iec958.status[0] = IEC958_AES0_PROFESSIONAL |
1032                                            IEC958_AES0_NONAUDIO |
1033                                            IEC958_AES0_PRO_EMPHASIS_5015;
1034         return 0;
1035 }
1036
1037 static int snd_hda_spdif_default_get(struct snd_kcontrol *kcontrol,
1038                                      struct snd_ctl_elem_value *ucontrol)
1039 {
1040         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1041
1042         ucontrol->value.iec958.status[0] = codec->spdif_status & 0xff;
1043         ucontrol->value.iec958.status[1] = (codec->spdif_status >> 8) & 0xff;
1044         ucontrol->value.iec958.status[2] = (codec->spdif_status >> 16) & 0xff;
1045         ucontrol->value.iec958.status[3] = (codec->spdif_status >> 24) & 0xff;
1046
1047         return 0;
1048 }
1049
1050 /* convert from SPDIF status bits to HDA SPDIF bits
1051  * bit 0 (DigEn) is always set zero (to be filled later)
1052  */
1053 static unsigned short convert_from_spdif_status(unsigned int sbits)
1054 {
1055         unsigned short val = 0;
1056
1057         if (sbits & IEC958_AES0_PROFESSIONAL)
1058                 val |= AC_DIG1_PROFESSIONAL;
1059         if (sbits & IEC958_AES0_NONAUDIO)
1060                 val |= AC_DIG1_NONAUDIO;
1061         if (sbits & IEC958_AES0_PROFESSIONAL) {
1062                 if ((sbits & IEC958_AES0_PRO_EMPHASIS) ==
1063                     IEC958_AES0_PRO_EMPHASIS_5015)
1064                         val |= AC_DIG1_EMPHASIS;
1065         } else {
1066                 if ((sbits & IEC958_AES0_CON_EMPHASIS) ==
1067                     IEC958_AES0_CON_EMPHASIS_5015)
1068                         val |= AC_DIG1_EMPHASIS;
1069                 if (!(sbits & IEC958_AES0_CON_NOT_COPYRIGHT))
1070                         val |= AC_DIG1_COPYRIGHT;
1071                 if (sbits & (IEC958_AES1_CON_ORIGINAL << 8))
1072                         val |= AC_DIG1_LEVEL;
1073                 val |= sbits & (IEC958_AES1_CON_CATEGORY << 8);
1074         }
1075         return val;
1076 }
1077
1078 /* convert to SPDIF status bits from HDA SPDIF bits
1079  */
1080 static unsigned int convert_to_spdif_status(unsigned short val)
1081 {
1082         unsigned int sbits = 0;
1083
1084         if (val & AC_DIG1_NONAUDIO)
1085                 sbits |= IEC958_AES0_NONAUDIO;
1086         if (val & AC_DIG1_PROFESSIONAL)
1087                 sbits |= IEC958_AES0_PROFESSIONAL;
1088         if (sbits & IEC958_AES0_PROFESSIONAL) {
1089                 if (sbits & AC_DIG1_EMPHASIS)
1090                         sbits |= IEC958_AES0_PRO_EMPHASIS_5015;
1091         } else {
1092                 if (val & AC_DIG1_EMPHASIS)
1093                         sbits |= IEC958_AES0_CON_EMPHASIS_5015;
1094                 if (!(val & AC_DIG1_COPYRIGHT))
1095                         sbits |= IEC958_AES0_CON_NOT_COPYRIGHT;
1096                 if (val & AC_DIG1_LEVEL)
1097                         sbits |= (IEC958_AES1_CON_ORIGINAL << 8);
1098                 sbits |= val & (0x7f << 8);
1099         }
1100         return sbits;
1101 }
1102
1103 static int snd_hda_spdif_default_put(struct snd_kcontrol *kcontrol,
1104                                      struct snd_ctl_elem_value *ucontrol)
1105 {
1106         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1107         hda_nid_t nid = kcontrol->private_value;
1108         unsigned short val;
1109         int change;
1110
1111         mutex_lock(&codec->spdif_mutex);
1112         codec->spdif_status = ucontrol->value.iec958.status[0] |
1113                 ((unsigned int)ucontrol->value.iec958.status[1] << 8) |
1114                 ((unsigned int)ucontrol->value.iec958.status[2] << 16) |
1115                 ((unsigned int)ucontrol->value.iec958.status[3] << 24);
1116         val = convert_from_spdif_status(codec->spdif_status);
1117         val |= codec->spdif_ctls & 1;
1118         change = codec->spdif_ctls != val;
1119         codec->spdif_ctls = val;
1120
1121         if (change || codec->in_resume) {
1122                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
1123                                     val & 0xff);
1124                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2,
1125                                     val >> 8);
1126         }
1127
1128         mutex_unlock(&codec->spdif_mutex);
1129         return change;
1130 }
1131
1132 static int snd_hda_spdif_out_switch_info(struct snd_kcontrol *kcontrol,
1133                                          struct snd_ctl_elem_info *uinfo)
1134 {
1135         uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
1136         uinfo->count = 1;
1137         uinfo->value.integer.min = 0;
1138         uinfo->value.integer.max = 1;
1139         return 0;
1140 }
1141
1142 static int snd_hda_spdif_out_switch_get(struct snd_kcontrol *kcontrol,
1143                                         struct snd_ctl_elem_value *ucontrol)
1144 {
1145         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1146
1147         ucontrol->value.integer.value[0] = codec->spdif_ctls & AC_DIG1_ENABLE;
1148         return 0;
1149 }
1150
1151 static int snd_hda_spdif_out_switch_put(struct snd_kcontrol *kcontrol,
1152                                         struct snd_ctl_elem_value *ucontrol)
1153 {
1154         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1155         hda_nid_t nid = kcontrol->private_value;
1156         unsigned short val;
1157         int change;
1158
1159         mutex_lock(&codec->spdif_mutex);
1160         val = codec->spdif_ctls & ~AC_DIG1_ENABLE;
1161         if (ucontrol->value.integer.value[0])
1162                 val |= AC_DIG1_ENABLE;
1163         change = codec->spdif_ctls != val;
1164         if (change || codec->in_resume) {
1165                 codec->spdif_ctls = val;
1166                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
1167                                     val & 0xff);
1168                 /* unmute amp switch (if any) */
1169                 if ((get_wcaps(codec, nid) & AC_WCAP_OUT_AMP) &&
1170                     (val & AC_DIG1_ENABLE))
1171                         snd_hda_codec_write(codec, nid, 0,
1172                                             AC_VERB_SET_AMP_GAIN_MUTE,
1173                                             AC_AMP_SET_RIGHT | AC_AMP_SET_LEFT |
1174                                             AC_AMP_SET_OUTPUT);
1175         }
1176         mutex_unlock(&codec->spdif_mutex);
1177         return change;
1178 }
1179
1180 static struct snd_kcontrol_new dig_mixes[] = {
1181         {
1182                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1183                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1184                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,CON_MASK),
1185                 .info = snd_hda_spdif_mask_info,
1186                 .get = snd_hda_spdif_cmask_get,
1187         },
1188         {
1189                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1190                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1191                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,PRO_MASK),
1192                 .info = snd_hda_spdif_mask_info,
1193                 .get = snd_hda_spdif_pmask_get,
1194         },
1195         {
1196                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1197                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT),
1198                 .info = snd_hda_spdif_mask_info,
1199                 .get = snd_hda_spdif_default_get,
1200                 .put = snd_hda_spdif_default_put,
1201         },
1202         {
1203                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1204                 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,SWITCH),
1205                 .info = snd_hda_spdif_out_switch_info,
1206                 .get = snd_hda_spdif_out_switch_get,
1207                 .put = snd_hda_spdif_out_switch_put,
1208         },
1209         { } /* end */
1210 };
1211
1212 /**
1213  * snd_hda_create_spdif_out_ctls - create Output SPDIF-related controls
1214  * @codec: the HDA codec
1215  * @nid: audio out widget NID
1216  *
1217  * Creates controls related with the SPDIF output.
1218  * Called from each patch supporting the SPDIF out.
1219  *
1220  * Returns 0 if successful, or a negative error code.
1221  */
1222 int __devinit snd_hda_create_spdif_out_ctls(struct hda_codec *codec,
1223                                             hda_nid_t nid)
1224 {
1225         int err;
1226         struct snd_kcontrol *kctl;
1227         struct snd_kcontrol_new *dig_mix;
1228
1229         for (dig_mix = dig_mixes; dig_mix->name; dig_mix++) {
1230                 kctl = snd_ctl_new1(dig_mix, codec);
1231                 kctl->private_value = nid;
1232                 err = snd_ctl_add(codec->bus->card, kctl);
1233                 if (err < 0)
1234                         return err;
1235         }
1236         codec->spdif_ctls =
1237                 snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1238         codec->spdif_status = convert_to_spdif_status(codec->spdif_ctls);
1239         return 0;
1240 }
1241
1242 /*
1243  * SPDIF input
1244  */
1245
1246 #define snd_hda_spdif_in_switch_info    snd_hda_spdif_out_switch_info
1247
1248 static int snd_hda_spdif_in_switch_get(struct snd_kcontrol *kcontrol,
1249                                        struct snd_ctl_elem_value *ucontrol)
1250 {
1251         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1252
1253         ucontrol->value.integer.value[0] = codec->spdif_in_enable;
1254         return 0;
1255 }
1256
1257 static int snd_hda_spdif_in_switch_put(struct snd_kcontrol *kcontrol,
1258                                        struct snd_ctl_elem_value *ucontrol)
1259 {
1260         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1261         hda_nid_t nid = kcontrol->private_value;
1262         unsigned int val = !!ucontrol->value.integer.value[0];
1263         int change;
1264
1265         mutex_lock(&codec->spdif_mutex);
1266         change = codec->spdif_in_enable != val;
1267         if (change || codec->in_resume) {
1268                 codec->spdif_in_enable = val;
1269                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
1270                                     val);
1271         }
1272         mutex_unlock(&codec->spdif_mutex);
1273         return change;
1274 }
1275
1276 static int snd_hda_spdif_in_status_get(struct snd_kcontrol *kcontrol,
1277                                        struct snd_ctl_elem_value *ucontrol)
1278 {
1279         struct hda_codec *codec = snd_kcontrol_chip(kcontrol);
1280         hda_nid_t nid = kcontrol->private_value;
1281         unsigned short val;
1282         unsigned int sbits;
1283
1284         val = snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0);
1285         sbits = convert_to_spdif_status(val);
1286         ucontrol->value.iec958.status[0] = sbits;
1287         ucontrol->value.iec958.status[1] = sbits >> 8;
1288         ucontrol->value.iec958.status[2] = sbits >> 16;
1289         ucontrol->value.iec958.status[3] = sbits >> 24;
1290         return 0;
1291 }
1292
1293 static struct snd_kcontrol_new dig_in_ctls[] = {
1294         {
1295                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1296                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,SWITCH),
1297                 .info = snd_hda_spdif_in_switch_info,
1298                 .get = snd_hda_spdif_in_switch_get,
1299                 .put = snd_hda_spdif_in_switch_put,
1300         },
1301         {
1302                 .access = SNDRV_CTL_ELEM_ACCESS_READ,
1303                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1304                 .name = SNDRV_CTL_NAME_IEC958("",CAPTURE,DEFAULT),
1305                 .info = snd_hda_spdif_mask_info,
1306                 .get = snd_hda_spdif_in_status_get,
1307         },
1308         { } /* end */
1309 };
1310
1311 /**
1312  * snd_hda_create_spdif_in_ctls - create Input SPDIF-related controls
1313  * @codec: the HDA codec
1314  * @nid: audio in widget NID
1315  *
1316  * Creates controls related with the SPDIF input.
1317  * Called from each patch supporting the SPDIF in.
1318  *
1319  * Returns 0 if successful, or a negative error code.
1320  */
1321 int __devinit snd_hda_create_spdif_in_ctls(struct hda_codec *codec,
1322                                            hda_nid_t nid)
1323 {
1324         int err;
1325         struct snd_kcontrol *kctl;
1326         struct snd_kcontrol_new *dig_mix;
1327
1328         for (dig_mix = dig_in_ctls; dig_mix->name; dig_mix++) {
1329                 kctl = snd_ctl_new1(dig_mix, codec);
1330                 kctl->private_value = nid;
1331                 err = snd_ctl_add(codec->bus->card, kctl);
1332                 if (err < 0)
1333                         return err;
1334         }
1335         codec->spdif_in_enable =
1336                 snd_hda_codec_read(codec, nid, 0, AC_VERB_GET_DIGI_CONVERT, 0) &
1337                 AC_DIG1_ENABLE;
1338         return 0;
1339 }
1340
1341
1342 /*
1343  * set power state of the codec
1344  */
1345 static void hda_set_power_state(struct hda_codec *codec, hda_nid_t fg,
1346                                 unsigned int power_state)
1347 {
1348         hda_nid_t nid, nid_start;
1349         int nodes;
1350
1351         snd_hda_codec_write(codec, fg, 0, AC_VERB_SET_POWER_STATE,
1352                             power_state);
1353
1354         nodes = snd_hda_get_sub_nodes(codec, fg, &nid_start);
1355         for (nid = nid_start; nid < nodes + nid_start; nid++) {
1356                 if (get_wcaps(codec, nid) & AC_WCAP_POWER)
1357                         snd_hda_codec_write(codec, nid, 0,
1358                                             AC_VERB_SET_POWER_STATE,
1359                                             power_state);
1360         }
1361
1362         if (power_state == AC_PWRST_D0)
1363                 msleep(10);
1364 }
1365
1366
1367 /**
1368  * snd_hda_build_controls - build mixer controls
1369  * @bus: the BUS
1370  *
1371  * Creates mixer controls for each codec included in the bus.
1372  *
1373  * Returns 0 if successful, otherwise a negative error code.
1374  */
1375 int __devinit snd_hda_build_controls(struct hda_bus *bus)
1376 {
1377         struct hda_codec *codec;
1378
1379         /* build controls */
1380         list_for_each_entry(codec, &bus->codec_list, list) {
1381                 int err;
1382                 if (!codec->patch_ops.build_controls)
1383                         continue;
1384                 err = codec->patch_ops.build_controls(codec);
1385                 if (err < 0)
1386                         return err;
1387         }
1388
1389         /* initialize */
1390         list_for_each_entry(codec, &bus->codec_list, list) {
1391                 int err;
1392                 hda_set_power_state(codec,
1393                                     codec->afg ? codec->afg : codec->mfg,
1394                                     AC_PWRST_D0);
1395                 if (!codec->patch_ops.init)
1396                         continue;
1397                 err = codec->patch_ops.init(codec);
1398                 if (err < 0)
1399                         return err;
1400         }
1401         return 0;
1402 }
1403
1404 /*
1405  * stream formats
1406  */
1407 struct hda_rate_tbl {
1408         unsigned int hz;
1409         unsigned int alsa_bits;
1410         unsigned int hda_fmt;
1411 };
1412
1413 static struct hda_rate_tbl rate_bits[] = {
1414         /* rate in Hz, ALSA rate bitmask, HDA format value */
1415
1416         /* autodetected value used in snd_hda_query_supported_pcm */
1417         { 8000, SNDRV_PCM_RATE_8000, 0x0500 }, /* 1/6 x 48 */
1418         { 11025, SNDRV_PCM_RATE_11025, 0x4300 }, /* 1/4 x 44 */
1419         { 16000, SNDRV_PCM_RATE_16000, 0x0200 }, /* 1/3 x 48 */
1420         { 22050, SNDRV_PCM_RATE_22050, 0x4100 }, /* 1/2 x 44 */
1421         { 32000, SNDRV_PCM_RATE_32000, 0x0a00 }, /* 2/3 x 48 */
1422         { 44100, SNDRV_PCM_RATE_44100, 0x4000 }, /* 44 */
1423         { 48000, SNDRV_PCM_RATE_48000, 0x0000 }, /* 48 */
1424         { 88200, SNDRV_PCM_RATE_88200, 0x4800 }, /* 2 x 44 */
1425         { 96000, SNDRV_PCM_RATE_96000, 0x0800 }, /* 2 x 48 */
1426         { 176400, SNDRV_PCM_RATE_176400, 0x5800 },/* 4 x 44 */
1427         { 192000, SNDRV_PCM_RATE_192000, 0x1800 }, /* 4 x 48 */
1428 #define AC_PAR_PCM_RATE_BITS    11
1429         /* up to bits 10, 384kHZ isn't supported properly */
1430
1431         /* not autodetected value */
1432         { 9600, SNDRV_PCM_RATE_KNOT, 0x0400 }, /* 1/5 x 48 */
1433
1434         { 0 } /* terminator */
1435 };
1436
1437 /**
1438  * snd_hda_calc_stream_format - calculate format bitset
1439  * @rate: the sample rate
1440  * @channels: the number of channels
1441  * @format: the PCM format (SNDRV_PCM_FORMAT_XXX)
1442  * @maxbps: the max. bps
1443  *
1444  * Calculate the format bitset from the given rate, channels and th PCM format.
1445  *
1446  * Return zero if invalid.
1447  */
1448 unsigned int snd_hda_calc_stream_format(unsigned int rate,
1449                                         unsigned int channels,
1450                                         unsigned int format,
1451                                         unsigned int maxbps)
1452 {
1453         int i;
1454         unsigned int val = 0;
1455
1456         for (i = 0; rate_bits[i].hz; i++)
1457                 if (rate_bits[i].hz == rate) {
1458                         val = rate_bits[i].hda_fmt;
1459                         break;
1460                 }
1461         if (!rate_bits[i].hz) {
1462                 snd_printdd("invalid rate %d\n", rate);
1463                 return 0;
1464         }
1465
1466         if (channels == 0 || channels > 8) {
1467                 snd_printdd("invalid channels %d\n", channels);
1468                 return 0;
1469         }
1470         val |= channels - 1;
1471
1472         switch (snd_pcm_format_width(format)) {
1473         case 8:  val |= 0x00; break;
1474         case 16: val |= 0x10; break;
1475         case 20:
1476         case 24:
1477         case 32:
1478                 if (maxbps >= 32)
1479                         val |= 0x40;
1480                 else if (maxbps >= 24)
1481                         val |= 0x30;
1482                 else
1483                         val |= 0x20;
1484                 break;
1485         default:
1486                 snd_printdd("invalid format width %d\n",
1487                             snd_pcm_format_width(format));
1488                 return 0;
1489         }
1490
1491         return val;
1492 }
1493
1494 /**
1495  * snd_hda_query_supported_pcm - query the supported PCM rates and formats
1496  * @codec: the HDA codec
1497  * @nid: NID to query
1498  * @ratesp: the pointer to store the detected rate bitflags
1499  * @formatsp: the pointer to store the detected formats
1500  * @bpsp: the pointer to store the detected format widths
1501  *
1502  * Queries the supported PCM rates and formats.  The NULL @ratesp, @formatsp
1503  * or @bsps argument is ignored.
1504  *
1505  * Returns 0 if successful, otherwise a negative error code.
1506  */
1507 int snd_hda_query_supported_pcm(struct hda_codec *codec, hda_nid_t nid,
1508                                 u32 *ratesp, u64 *formatsp, unsigned int *bpsp)
1509 {
1510         int i;
1511         unsigned int val, streams;
1512
1513         val = 0;
1514         if (nid != codec->afg &&
1515             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1516                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1517                 if (val == -1)
1518                         return -EIO;
1519         }
1520         if (!val)
1521                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1522
1523         if (ratesp) {
1524                 u32 rates = 0;
1525                 for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++) {
1526                         if (val & (1 << i))
1527                                 rates |= rate_bits[i].alsa_bits;
1528                 }
1529                 *ratesp = rates;
1530         }
1531
1532         if (formatsp || bpsp) {
1533                 u64 formats = 0;
1534                 unsigned int bps;
1535                 unsigned int wcaps;
1536
1537                 wcaps = get_wcaps(codec, nid);
1538                 streams = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1539                 if (streams == -1)
1540                         return -EIO;
1541                 if (!streams) {
1542                         streams = snd_hda_param_read(codec, codec->afg,
1543                                                      AC_PAR_STREAM);
1544                         if (streams == -1)
1545                                 return -EIO;
1546                 }
1547
1548                 bps = 0;
1549                 if (streams & AC_SUPFMT_PCM) {
1550                         if (val & AC_SUPPCM_BITS_8) {
1551                                 formats |= SNDRV_PCM_FMTBIT_U8;
1552                                 bps = 8;
1553                         }
1554                         if (val & AC_SUPPCM_BITS_16) {
1555                                 formats |= SNDRV_PCM_FMTBIT_S16_LE;
1556                                 bps = 16;
1557                         }
1558                         if (wcaps & AC_WCAP_DIGITAL) {
1559                                 if (val & AC_SUPPCM_BITS_32)
1560                                         formats |= SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_LE;
1561                                 if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24))
1562                                         formats |= SNDRV_PCM_FMTBIT_S32_LE;
1563                                 if (val & AC_SUPPCM_BITS_24)
1564                                         bps = 24;
1565                                 else if (val & AC_SUPPCM_BITS_20)
1566                                         bps = 20;
1567                         } else if (val & (AC_SUPPCM_BITS_20|AC_SUPPCM_BITS_24|
1568                                           AC_SUPPCM_BITS_32)) {
1569                                 formats |= SNDRV_PCM_FMTBIT_S32_LE;
1570                                 if (val & AC_SUPPCM_BITS_32)
1571                                         bps = 32;
1572                                 else if (val & AC_SUPPCM_BITS_24)
1573                                         bps = 24;
1574                                 else if (val & AC_SUPPCM_BITS_20)
1575                                         bps = 20;
1576                         }
1577                 }
1578                 else if (streams == AC_SUPFMT_FLOAT32) {
1579                         /* should be exclusive */
1580                         formats |= SNDRV_PCM_FMTBIT_FLOAT_LE;
1581                         bps = 32;
1582                 } else if (streams == AC_SUPFMT_AC3) {
1583                         /* should be exclusive */
1584                         /* temporary hack: we have still no proper support
1585                          * for the direct AC3 stream...
1586                          */
1587                         formats |= SNDRV_PCM_FMTBIT_U8;
1588                         bps = 8;
1589                 }
1590                 if (formatsp)
1591                         *formatsp = formats;
1592                 if (bpsp)
1593                         *bpsp = bps;
1594         }
1595
1596         return 0;
1597 }
1598
1599 /**
1600  * snd_hda_is_supported_format - check whether the given node supports
1601  * the format val
1602  *
1603  * Returns 1 if supported, 0 if not.
1604  */
1605 int snd_hda_is_supported_format(struct hda_codec *codec, hda_nid_t nid,
1606                                 unsigned int format)
1607 {
1608         int i;
1609         unsigned int val = 0, rate, stream;
1610
1611         if (nid != codec->afg &&
1612             (get_wcaps(codec, nid) & AC_WCAP_FORMAT_OVRD)) {
1613                 val = snd_hda_param_read(codec, nid, AC_PAR_PCM);
1614                 if (val == -1)
1615                         return 0;
1616         }
1617         if (!val) {
1618                 val = snd_hda_param_read(codec, codec->afg, AC_PAR_PCM);
1619                 if (val == -1)
1620                         return 0;
1621         }
1622
1623         rate = format & 0xff00;
1624         for (i = 0; i < AC_PAR_PCM_RATE_BITS; i++)
1625                 if (rate_bits[i].hda_fmt == rate) {
1626                         if (val & (1 << i))
1627                                 break;
1628                         return 0;
1629                 }
1630         if (i >= AC_PAR_PCM_RATE_BITS)
1631                 return 0;
1632
1633         stream = snd_hda_param_read(codec, nid, AC_PAR_STREAM);
1634         if (stream == -1)
1635                 return 0;
1636         if (!stream && nid != codec->afg)
1637                 stream = snd_hda_param_read(codec, codec->afg, AC_PAR_STREAM);
1638         if (!stream || stream == -1)
1639                 return 0;
1640
1641         if (stream & AC_SUPFMT_PCM) {
1642                 switch (format & 0xf0) {
1643                 case 0x00:
1644                         if (!(val & AC_SUPPCM_BITS_8))
1645                                 return 0;
1646                         break;
1647                 case 0x10:
1648                         if (!(val & AC_SUPPCM_BITS_16))
1649                                 return 0;
1650                         break;
1651                 case 0x20:
1652                         if (!(val & AC_SUPPCM_BITS_20))
1653                                 return 0;
1654                         break;
1655                 case 0x30:
1656                         if (!(val & AC_SUPPCM_BITS_24))
1657                                 return 0;
1658                         break;
1659                 case 0x40:
1660                         if (!(val & AC_SUPPCM_BITS_32))
1661                                 return 0;
1662                         break;
1663                 default:
1664                         return 0;
1665                 }
1666         } else {
1667                 /* FIXME: check for float32 and AC3? */
1668         }
1669
1670         return 1;
1671 }
1672
1673 /*
1674  * PCM stuff
1675  */
1676 static int hda_pcm_default_open_close(struct hda_pcm_stream *hinfo,
1677                                       struct hda_codec *codec,
1678                                       struct snd_pcm_substream *substream)
1679 {
1680         return 0;
1681 }
1682
1683 static int hda_pcm_default_prepare(struct hda_pcm_stream *hinfo,
1684                                    struct hda_codec *codec,
1685                                    unsigned int stream_tag,
1686                                    unsigned int format,
1687                                    struct snd_pcm_substream *substream)
1688 {
1689         snd_hda_codec_setup_stream(codec, hinfo->nid, stream_tag, 0, format);
1690         return 0;
1691 }
1692
1693 static int hda_pcm_default_cleanup(struct hda_pcm_stream *hinfo,
1694                                    struct hda_codec *codec,
1695                                    struct snd_pcm_substream *substream)
1696 {
1697         snd_hda_codec_setup_stream(codec, hinfo->nid, 0, 0, 0);
1698         return 0;
1699 }
1700
1701 static int __devinit set_pcm_default_values(struct hda_codec *codec,
1702                                             struct hda_pcm_stream *info)
1703 {
1704         /* query support PCM information from the given NID */
1705         if (info->nid && (!info->rates || !info->formats)) {
1706                 snd_hda_query_supported_pcm(codec, info->nid,
1707                                 info->rates ? NULL : &info->rates,
1708                                 info->formats ? NULL : &info->formats,
1709                                 info->maxbps ? NULL : &info->maxbps);
1710         }
1711         if (info->ops.open == NULL)
1712                 info->ops.open = hda_pcm_default_open_close;
1713         if (info->ops.close == NULL)
1714                 info->ops.close = hda_pcm_default_open_close;
1715         if (info->ops.prepare == NULL) {
1716                 snd_assert(info->nid, return -EINVAL);
1717                 info->ops.prepare = hda_pcm_default_prepare;
1718         }
1719         if (info->ops.cleanup == NULL) {
1720                 snd_assert(info->nid, return -EINVAL);
1721                 info->ops.cleanup = hda_pcm_default_cleanup;
1722         }
1723         return 0;
1724 }
1725
1726 /**
1727  * snd_hda_build_pcms - build PCM information
1728  * @bus: the BUS
1729  *
1730  * Create PCM information for each codec included in the bus.
1731  *
1732  * The build_pcms codec patch is requested to set up codec->num_pcms and
1733  * codec->pcm_info properly.  The array is referred by the top-level driver
1734  * to create its PCM instances.
1735  * The allocated codec->pcm_info should be released in codec->patch_ops.free
1736  * callback.
1737  *
1738  * At least, substreams, channels_min and channels_max must be filled for
1739  * each stream.  substreams = 0 indicates that the stream doesn't exist.
1740  * When rates and/or formats are zero, the supported values are queried
1741  * from the given nid.  The nid is used also by the default ops.prepare
1742  * and ops.cleanup callbacks.
1743  *
1744  * The driver needs to call ops.open in its open callback.  Similarly,
1745  * ops.close is supposed to be called in the close callback.
1746  * ops.prepare should be called in the prepare or hw_params callback
1747  * with the proper parameters for set up.
1748  * ops.cleanup should be called in hw_free for clean up of streams.
1749  *
1750  * This function returns 0 if successfull, or a negative error code.
1751  */
1752 int __devinit snd_hda_build_pcms(struct hda_bus *bus)
1753 {
1754         struct hda_codec *codec;
1755
1756         list_for_each_entry(codec, &bus->codec_list, list) {
1757                 unsigned int pcm, s;
1758                 int err;
1759                 if (!codec->patch_ops.build_pcms)
1760                         continue;
1761                 err = codec->patch_ops.build_pcms(codec);
1762                 if (err < 0)
1763                         return err;
1764                 for (pcm = 0; pcm < codec->num_pcms; pcm++) {
1765                         for (s = 0; s < 2; s++) {
1766                                 struct hda_pcm_stream *info;
1767                                 info = &codec->pcm_info[pcm].stream[s];
1768                                 if (!info->substreams)
1769                                         continue;
1770                                 err = set_pcm_default_values(codec, info);
1771                                 if (err < 0)
1772                                         return err;
1773                         }
1774                 }
1775         }
1776         return 0;
1777 }
1778
1779 /**
1780  * snd_hda_check_board_config - compare the current codec with the config table
1781  * @codec: the HDA codec
1782  * @num_configs: number of config enums
1783  * @models: array of model name strings
1784  * @tbl: configuration table, terminated by null entries
1785  *
1786  * Compares the modelname or PCI subsystem id of the current codec with the
1787  * given configuration table.  If a matching entry is found, returns its
1788  * config value (supposed to be 0 or positive).
1789  *
1790  * If no entries are matching, the function returns a negative value.
1791  */
1792 int __devinit snd_hda_check_board_config(struct hda_codec *codec,
1793                                          int num_configs, const char **models,
1794                                          const struct snd_pci_quirk *tbl)
1795 {
1796         if (codec->bus->modelname && models) {
1797                 int i;
1798                 for (i = 0; i < num_configs; i++) {
1799                         if (models[i] &&
1800                             !strcmp(codec->bus->modelname, models[i])) {
1801                                 snd_printd(KERN_INFO "hda_codec: model '%s' is "
1802                                            "selected\n", models[i]);
1803                                 return i;
1804                         }
1805                 }
1806         }
1807
1808         if (!codec->bus->pci || !tbl)
1809                 return -1;
1810
1811         tbl = snd_pci_quirk_lookup(codec->bus->pci, tbl);
1812         if (!tbl)
1813                 return -1;
1814         if (tbl->value >= 0 && tbl->value < num_configs) {
1815 #ifdef CONFIG_SND_DEBUG_DETECT
1816                 char tmp[10];
1817                 const char *model = NULL;
1818                 if (models)
1819                         model = models[tbl->value];
1820                 if (!model) {
1821                         sprintf(tmp, "#%d", tbl->value);
1822                         model = tmp;
1823                 }
1824                 snd_printdd(KERN_INFO "hda_codec: model '%s' is selected "
1825                             "for config %x:%x (%s)\n",
1826                             model, tbl->subvendor, tbl->subdevice,
1827                             (tbl->name ? tbl->name : "Unknown device"));
1828 #endif
1829                 return tbl->value;
1830         }
1831         return -1;
1832 }
1833
1834 /**
1835  * snd_hda_add_new_ctls - create controls from the array
1836  * @codec: the HDA codec
1837  * @knew: the array of struct snd_kcontrol_new
1838  *
1839  * This helper function creates and add new controls in the given array.
1840  * The array must be terminated with an empty entry as terminator.
1841  *
1842  * Returns 0 if successful, or a negative error code.
1843  */
1844 int __devinit snd_hda_add_new_ctls(struct hda_codec *codec,
1845                                    struct snd_kcontrol_new *knew)
1846 {
1847         int err;
1848
1849         for (; knew->name; knew++) {
1850                 struct snd_kcontrol *kctl;
1851                 kctl = snd_ctl_new1(knew, codec);
1852                 if (!kctl)
1853                         return -ENOMEM;
1854                 err = snd_ctl_add(codec->bus->card, kctl);
1855                 if (err < 0) {
1856                         if (!codec->addr)
1857                                 return err;
1858                         kctl = snd_ctl_new1(knew, codec);
1859                         if (!kctl)
1860                                 return -ENOMEM;
1861                         kctl->id.device = codec->addr;
1862                         err = snd_ctl_add(codec->bus->card, kctl);
1863                         if (err < 0)
1864                                 return err;
1865                 }
1866         }
1867         return 0;
1868 }
1869
1870
1871 /*
1872  * Channel mode helper
1873  */
1874 int snd_hda_ch_mode_info(struct hda_codec *codec,
1875                          struct snd_ctl_elem_info *uinfo,
1876                          const struct hda_channel_mode *chmode,
1877                          int num_chmodes)
1878 {
1879         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1880         uinfo->count = 1;
1881         uinfo->value.enumerated.items = num_chmodes;
1882         if (uinfo->value.enumerated.item >= num_chmodes)
1883                 uinfo->value.enumerated.item = num_chmodes - 1;
1884         sprintf(uinfo->value.enumerated.name, "%dch",
1885                 chmode[uinfo->value.enumerated.item].channels);
1886         return 0;
1887 }
1888
1889 int snd_hda_ch_mode_get(struct hda_codec *codec,
1890                         struct snd_ctl_elem_value *ucontrol,
1891                         const struct hda_channel_mode *chmode,
1892                         int num_chmodes,
1893                         int max_channels)
1894 {
1895         int i;
1896
1897         for (i = 0; i < num_chmodes; i++) {
1898                 if (max_channels == chmode[i].channels) {
1899                         ucontrol->value.enumerated.item[0] = i;
1900                         break;
1901                 }
1902         }
1903         return 0;
1904 }
1905
1906 int snd_hda_ch_mode_put(struct hda_codec *codec,
1907                         struct snd_ctl_elem_value *ucontrol,
1908                         const struct hda_channel_mode *chmode,
1909                         int num_chmodes,
1910                         int *max_channelsp)
1911 {
1912         unsigned int mode;
1913
1914         mode = ucontrol->value.enumerated.item[0];
1915         snd_assert(mode < num_chmodes, return -EINVAL);
1916         if (*max_channelsp == chmode[mode].channels && !codec->in_resume)
1917                 return 0;
1918         /* change the current channel setting */
1919         *max_channelsp = chmode[mode].channels;
1920         if (chmode[mode].sequence)
1921                 snd_hda_sequence_write(codec, chmode[mode].sequence);
1922         return 1;
1923 }
1924
1925 /*
1926  * input MUX helper
1927  */
1928 int snd_hda_input_mux_info(const struct hda_input_mux *imux,
1929                            struct snd_ctl_elem_info *uinfo)
1930 {
1931         unsigned int index;
1932
1933         uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1934         uinfo->count = 1;
1935         uinfo->value.enumerated.items = imux->num_items;
1936         index = uinfo->value.enumerated.item;
1937         if (index >= imux->num_items)
1938                 index = imux->num_items - 1;
1939         strcpy(uinfo->value.enumerated.name, imux->items[index].label);
1940         return 0;
1941 }
1942
1943 int snd_hda_input_mux_put(struct hda_codec *codec,
1944                           const struct hda_input_mux *imux,
1945                           struct snd_ctl_elem_value *ucontrol,
1946                           hda_nid_t nid,
1947                           unsigned int *cur_val)
1948 {
1949         unsigned int idx;
1950
1951         idx = ucontrol->value.enumerated.item[0];
1952         if (idx >= imux->num_items)
1953                 idx = imux->num_items - 1;
1954         if (*cur_val == idx && !codec->in_resume)
1955                 return 0;
1956         snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_CONNECT_SEL,
1957                             imux->items[idx].index);
1958         *cur_val = idx;
1959         return 1;
1960 }
1961
1962
1963 /*
1964  * Multi-channel / digital-out PCM helper functions
1965  */
1966
1967 /* setup SPDIF output stream */
1968 static void setup_dig_out_stream(struct hda_codec *codec, hda_nid_t nid,
1969                                  unsigned int stream_tag, unsigned int format)
1970 {
1971         /* turn off SPDIF once; otherwise the IEC958 bits won't be updated */
1972         if (codec->spdif_ctls & AC_DIG1_ENABLE)
1973                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
1974                                     codec->spdif_ctls & ~AC_DIG1_ENABLE & 0xff);
1975         snd_hda_codec_setup_stream(codec, nid, stream_tag, 0, format);
1976         /* turn on again (if needed) */
1977         if (codec->spdif_ctls & AC_DIG1_ENABLE)
1978                 snd_hda_codec_write(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_1,
1979                                     codec->spdif_ctls & 0xff);
1980 }
1981
1982 /*
1983  * open the digital out in the exclusive mode
1984  */
1985 int snd_hda_multi_out_dig_open(struct hda_codec *codec,
1986                                struct hda_multi_out *mout)
1987 {
1988         mutex_lock(&codec->spdif_mutex);
1989         if (mout->dig_out_used == HDA_DIG_ANALOG_DUP)
1990                 /* already opened as analog dup; reset it once */
1991                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
1992         mout->dig_out_used = HDA_DIG_EXCLUSIVE;
1993         mutex_unlock(&codec->spdif_mutex);
1994         return 0;
1995 }
1996
1997 int snd_hda_multi_out_dig_prepare(struct hda_codec *codec,
1998                                   struct hda_multi_out *mout,
1999                                   unsigned int stream_tag,
2000                                   unsigned int format,
2001                                   struct snd_pcm_substream *substream)
2002 {
2003         mutex_lock(&codec->spdif_mutex);
2004         setup_dig_out_stream(codec, mout->dig_out_nid, stream_tag, format);
2005         mutex_unlock(&codec->spdif_mutex);
2006         return 0;
2007 }
2008
2009 /*
2010  * release the digital out
2011  */
2012 int snd_hda_multi_out_dig_close(struct hda_codec *codec,
2013                                 struct hda_multi_out *mout)
2014 {
2015         mutex_lock(&codec->spdif_mutex);
2016         mout->dig_out_used = 0;
2017         mutex_unlock(&codec->spdif_mutex);
2018         return 0;
2019 }
2020
2021 /*
2022  * set up more restrictions for analog out
2023  */
2024 int snd_hda_multi_out_analog_open(struct hda_codec *codec,
2025                                   struct hda_multi_out *mout,
2026                                   struct snd_pcm_substream *substream)
2027 {
2028         substream->runtime->hw.channels_max = mout->max_channels;
2029         return snd_pcm_hw_constraint_step(substream->runtime, 0,
2030                                           SNDRV_PCM_HW_PARAM_CHANNELS, 2);
2031 }
2032
2033 /*
2034  * set up the i/o for analog out
2035  * when the digital out is available, copy the front out to digital out, too.
2036  */
2037 int snd_hda_multi_out_analog_prepare(struct hda_codec *codec,
2038                                      struct hda_multi_out *mout,
2039                                      unsigned int stream_tag,
2040                                      unsigned int format,
2041                                      struct snd_pcm_substream *substream)
2042 {
2043         hda_nid_t *nids = mout->dac_nids;
2044         int chs = substream->runtime->channels;
2045         int i;
2046
2047         mutex_lock(&codec->spdif_mutex);
2048         if (mout->dig_out_nid && mout->dig_out_used != HDA_DIG_EXCLUSIVE) {
2049                 if (chs == 2 &&
2050                     snd_hda_is_supported_format(codec, mout->dig_out_nid,
2051                                                 format) &&
2052                     !(codec->spdif_status & IEC958_AES0_NONAUDIO)) {
2053                         mout->dig_out_used = HDA_DIG_ANALOG_DUP;
2054                         setup_dig_out_stream(codec, mout->dig_out_nid,
2055                                              stream_tag, format);
2056                 } else {
2057                         mout->dig_out_used = 0;
2058                         snd_hda_codec_setup_stream(codec, mout->dig_out_nid,
2059                                                    0, 0, 0);
2060                 }
2061         }
2062         mutex_unlock(&codec->spdif_mutex);
2063
2064         /* front */
2065         snd_hda_codec_setup_stream(codec, nids[HDA_FRONT], stream_tag,
2066                                    0, format);
2067         if (mout->hp_nid && mout->hp_nid != nids[HDA_FRONT])
2068                 /* headphone out will just decode front left/right (stereo) */
2069                 snd_hda_codec_setup_stream(codec, mout->hp_nid, stream_tag,
2070                                            0, format);
2071         /* extra outputs copied from front */
2072         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2073                 if (mout->extra_out_nid[i])
2074                         snd_hda_codec_setup_stream(codec,
2075                                                    mout->extra_out_nid[i],
2076                                                    stream_tag, 0, format);
2077
2078         /* surrounds */
2079         for (i = 1; i < mout->num_dacs; i++) {
2080                 if (chs >= (i + 1) * 2) /* independent out */
2081                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2082                                                    i * 2, format);
2083                 else /* copy front */
2084                         snd_hda_codec_setup_stream(codec, nids[i], stream_tag,
2085                                                    0, format);
2086         }
2087         return 0;
2088 }
2089
2090 /*
2091  * clean up the setting for analog out
2092  */
2093 int snd_hda_multi_out_analog_cleanup(struct hda_codec *codec,
2094                                      struct hda_multi_out *mout)
2095 {
2096         hda_nid_t *nids = mout->dac_nids;
2097         int i;
2098
2099         for (i = 0; i < mout->num_dacs; i++)
2100                 snd_hda_codec_setup_stream(codec, nids[i], 0, 0, 0);
2101         if (mout->hp_nid)
2102                 snd_hda_codec_setup_stream(codec, mout->hp_nid, 0, 0, 0);
2103         for (i = 0; i < ARRAY_SIZE(mout->extra_out_nid); i++)
2104                 if (mout->extra_out_nid[i])
2105                         snd_hda_codec_setup_stream(codec,
2106                                                    mout->extra_out_nid[i],
2107                                                    0, 0, 0);
2108         mutex_lock(&codec->spdif_mutex);
2109         if (mout->dig_out_nid && mout->dig_out_used == HDA_DIG_ANALOG_DUP) {
2110                 snd_hda_codec_setup_stream(codec, mout->dig_out_nid, 0, 0, 0);
2111                 mout->dig_out_used = 0;
2112         }
2113         mutex_unlock(&codec->spdif_mutex);
2114         return 0;
2115 }
2116
2117 /*
2118  * Helper for automatic ping configuration
2119  */
2120
2121 static int __devinit is_in_nid_list(hda_nid_t nid, hda_nid_t *list)
2122 {
2123         for (; *list; list++)
2124                 if (*list == nid)
2125                         return 1;
2126         return 0;
2127 }
2128
2129
2130 /*
2131  * Sort an associated group of pins according to their sequence numbers.
2132  */
2133 static void sort_pins_by_sequence(hda_nid_t * pins, short * sequences,
2134                                   int num_pins)
2135 {
2136         int i, j;
2137         short seq;
2138         hda_nid_t nid;
2139
2140         for (i = 0; i < num_pins; i++) {
2141                 for (j = i + 1; j < num_pins; j++) {
2142                         if (sequences[i] > sequences[j]) {
2143                                 seq = sequences[i];
2144                                 sequences[i] = sequences[j];
2145                                 sequences[j] = seq;
2146                                 nid = pins[i];
2147                                 pins[i] = pins[j];
2148                                 pins[j] = nid;
2149                         }
2150                 }
2151         }
2152 }
2153
2154
2155 /*
2156  * Parse all pin widgets and store the useful pin nids to cfg
2157  *
2158  * The number of line-outs or any primary output is stored in line_outs,
2159  * and the corresponding output pins are assigned to line_out_pins[],
2160  * in the order of front, rear, CLFE, side, ...
2161  *
2162  * If more extra outputs (speaker and headphone) are found, the pins are
2163  * assisnged to hp_pins[] and speaker_pins[], respectively.  If no line-out jack
2164  * is detected, one of speaker of HP pins is assigned as the primary
2165  * output, i.e. to line_out_pins[0].  So, line_outs is always positive
2166  * if any analog output exists.
2167  *
2168  * The analog input pins are assigned to input_pins array.
2169  * The digital input/output pins are assigned to dig_in_pin and dig_out_pin,
2170  * respectively.
2171  */
2172 int __devinit snd_hda_parse_pin_def_config(struct hda_codec *codec,
2173                                            struct auto_pin_cfg *cfg,
2174                                            hda_nid_t *ignore_nids)
2175 {
2176         hda_nid_t nid, nid_start;
2177         int nodes;
2178         short seq, assoc_line_out, assoc_speaker;
2179         short sequences_line_out[ARRAY_SIZE(cfg->line_out_pins)];
2180         short sequences_speaker[ARRAY_SIZE(cfg->speaker_pins)];
2181
2182         memset(cfg, 0, sizeof(*cfg));
2183
2184         memset(sequences_line_out, 0, sizeof(sequences_line_out));
2185         memset(sequences_speaker, 0, sizeof(sequences_speaker));
2186         assoc_line_out = assoc_speaker = 0;
2187
2188         nodes = snd_hda_get_sub_nodes(codec, codec->afg, &nid_start);
2189         for (nid = nid_start; nid < nodes + nid_start; nid++) {
2190                 unsigned int wid_caps = get_wcaps(codec, nid);
2191                 unsigned int wid_type =
2192                         (wid_caps & AC_WCAP_TYPE) >> AC_WCAP_TYPE_SHIFT;
2193                 unsigned int def_conf;
2194                 short assoc, loc;
2195
2196                 /* read all default configuration for pin complex */
2197                 if (wid_type != AC_WID_PIN)
2198                         continue;
2199                 /* ignore the given nids (e.g. pc-beep returns error) */
2200                 if (ignore_nids && is_in_nid_list(nid, ignore_nids))
2201                         continue;
2202
2203                 def_conf = snd_hda_codec_read(codec, nid, 0,
2204                                               AC_VERB_GET_CONFIG_DEFAULT, 0);
2205                 if (get_defcfg_connect(def_conf) == AC_JACK_PORT_NONE)
2206                         continue;
2207                 loc = get_defcfg_location(def_conf);
2208                 switch (get_defcfg_device(def_conf)) {
2209                 case AC_JACK_LINE_OUT:
2210                         seq = get_defcfg_sequence(def_conf);
2211                         assoc = get_defcfg_association(def_conf);
2212                         if (!assoc)
2213                                 continue;
2214                         if (!assoc_line_out)
2215                                 assoc_line_out = assoc;
2216                         else if (assoc_line_out != assoc)
2217                                 continue;
2218                         if (cfg->line_outs >= ARRAY_SIZE(cfg->line_out_pins))
2219                                 continue;
2220                         cfg->line_out_pins[cfg->line_outs] = nid;
2221                         sequences_line_out[cfg->line_outs] = seq;
2222                         cfg->line_outs++;
2223                         break;
2224                 case AC_JACK_SPEAKER:
2225                         seq = get_defcfg_sequence(def_conf);
2226                         assoc = get_defcfg_association(def_conf);
2227                         if (! assoc)
2228                                 continue;
2229                         if (! assoc_speaker)
2230                                 assoc_speaker = assoc;
2231                         else if (assoc_speaker != assoc)
2232                                 continue;
2233                         if (cfg->speaker_outs >= ARRAY_SIZE(cfg->speaker_pins))
2234                                 continue;
2235                         cfg->speaker_pins[cfg->speaker_outs] = nid;
2236                         sequences_speaker[cfg->speaker_outs] = seq;
2237                         cfg->speaker_outs++;
2238                         break;
2239                 case AC_JACK_HP_OUT:
2240                         if (cfg->hp_outs >= ARRAY_SIZE(cfg->hp_pins))
2241                                 continue;
2242                         cfg->hp_pins[cfg->hp_outs] = nid;
2243                         cfg->hp_outs++;
2244                         break;
2245                 case AC_JACK_MIC_IN: {
2246                         int preferred, alt;
2247                         if (loc == AC_JACK_LOC_FRONT) {
2248                                 preferred = AUTO_PIN_FRONT_MIC;
2249                                 alt = AUTO_PIN_MIC;
2250                         } else {
2251                                 preferred = AUTO_PIN_MIC;
2252                                 alt = AUTO_PIN_FRONT_MIC;
2253                         }
2254                         if (!cfg->input_pins[preferred])
2255                                 cfg->input_pins[preferred] = nid;
2256                         else if (!cfg->input_pins[alt])
2257                                 cfg->input_pins[alt] = nid;
2258                         break;
2259                 }
2260                 case AC_JACK_LINE_IN:
2261                         if (loc == AC_JACK_LOC_FRONT)
2262                                 cfg->input_pins[AUTO_PIN_FRONT_LINE] = nid;
2263                         else
2264                                 cfg->input_pins[AUTO_PIN_LINE] = nid;
2265                         break;
2266                 case AC_JACK_CD:
2267                         cfg->input_pins[AUTO_PIN_CD] = nid;
2268                         break;
2269                 case AC_JACK_AUX:
2270                         cfg->input_pins[AUTO_PIN_AUX] = nid;
2271                         break;
2272                 case AC_JACK_SPDIF_OUT:
2273                         cfg->dig_out_pin = nid;
2274                         break;
2275                 case AC_JACK_SPDIF_IN:
2276                         cfg->dig_in_pin = nid;
2277                         break;
2278                 }
2279         }
2280
2281         /* sort by sequence */
2282         sort_pins_by_sequence(cfg->line_out_pins, sequences_line_out,
2283                               cfg->line_outs);
2284         sort_pins_by_sequence(cfg->speaker_pins, sequences_speaker,
2285                               cfg->speaker_outs);
2286
2287         /*
2288          * FIX-UP: if no line-outs are detected, try to use speaker or HP pin
2289          * as a primary output
2290          */
2291         if (!cfg->line_outs) {
2292                 if (cfg->speaker_outs) {
2293                         cfg->line_outs = cfg->speaker_outs;
2294                         memcpy(cfg->line_out_pins, cfg->speaker_pins,
2295                                sizeof(cfg->speaker_pins));
2296                         cfg->speaker_outs = 0;
2297                         memset(cfg->speaker_pins, 0, sizeof(cfg->speaker_pins));
2298                         cfg->line_out_type = AUTO_PIN_SPEAKER_OUT;
2299                 } else if (cfg->hp_outs) {
2300                         cfg->line_outs = cfg->hp_outs;
2301                         memcpy(cfg->line_out_pins, cfg->hp_pins,
2302                                sizeof(cfg->hp_pins));
2303                         cfg->hp_outs = 0;
2304                         memset(cfg->hp_pins, 0, sizeof(cfg->hp_pins));
2305                         cfg->line_out_type = AUTO_PIN_HP_OUT;
2306                 }
2307         }
2308
2309         /* Reorder the surround channels
2310          * ALSA sequence is front/surr/clfe/side
2311          * HDA sequence is:
2312          *    4-ch: front/surr  =>  OK as it is
2313          *    6-ch: front/clfe/surr
2314          *    8-ch: front/clfe/rear/side|fc
2315          */
2316         switch (cfg->line_outs) {
2317         case 3:
2318         case 4:
2319                 nid = cfg->line_out_pins[1];
2320                 cfg->line_out_pins[1] = cfg->line_out_pins[2];
2321                 cfg->line_out_pins[2] = nid;
2322                 break;
2323         }
2324
2325         /*
2326          * debug prints of the parsed results
2327          */
2328         snd_printd("autoconfig: line_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2329                    cfg->line_outs, cfg->line_out_pins[0], cfg->line_out_pins[1],
2330                    cfg->line_out_pins[2], cfg->line_out_pins[3],
2331                    cfg->line_out_pins[4]);
2332         snd_printd("   speaker_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2333                    cfg->speaker_outs, cfg->speaker_pins[0],
2334                    cfg->speaker_pins[1], cfg->speaker_pins[2],
2335                    cfg->speaker_pins[3], cfg->speaker_pins[4]);
2336         snd_printd("   hp_outs=%d (0x%x/0x%x/0x%x/0x%x/0x%x)\n",
2337                    cfg->hp_outs, cfg->hp_pins[0],
2338                    cfg->hp_pins[1], cfg->hp_pins[2],
2339                    cfg->hp_pins[3], cfg->hp_pins[4]);
2340         snd_printd("   inputs: mic=0x%x, fmic=0x%x, line=0x%x, fline=0x%x,"
2341                    " cd=0x%x, aux=0x%x\n",
2342                    cfg->input_pins[AUTO_PIN_MIC],
2343                    cfg->input_pins[AUTO_PIN_FRONT_MIC],
2344                    cfg->input_pins[AUTO_PIN_LINE],
2345                    cfg->input_pins[AUTO_PIN_FRONT_LINE],
2346                    cfg->input_pins[AUTO_PIN_CD],
2347                    cfg->input_pins[AUTO_PIN_AUX]);
2348
2349         return 0;
2350 }
2351
2352 /* labels for input pins */
2353 const char *auto_pin_cfg_labels[AUTO_PIN_LAST] = {
2354         "Mic", "Front Mic", "Line", "Front Line", "CD", "Aux"
2355 };
2356
2357
2358 #ifdef CONFIG_PM
2359 /*
2360  * power management
2361  */
2362
2363 /**
2364  * snd_hda_suspend - suspend the codecs
2365  * @bus: the HDA bus
2366  * @state: suspsend state
2367  *
2368  * Returns 0 if successful.
2369  */
2370 int snd_hda_suspend(struct hda_bus *bus, pm_message_t state)
2371 {
2372         struct hda_codec *codec;
2373
2374         /* FIXME: should handle power widget capabilities */
2375         list_for_each_entry(codec, &bus->codec_list, list) {
2376                 if (codec->patch_ops.suspend)
2377                         codec->patch_ops.suspend(codec, state);
2378                 hda_set_power_state(codec,
2379                                     codec->afg ? codec->afg : codec->mfg,
2380                                     AC_PWRST_D3);
2381         }
2382         return 0;
2383 }
2384
2385 /**
2386  * snd_hda_resume - resume the codecs
2387  * @bus: the HDA bus
2388  * @state: resume state
2389  *
2390  * Returns 0 if successful.
2391  */
2392 int snd_hda_resume(struct hda_bus *bus)
2393 {
2394         struct hda_codec *codec;
2395
2396         list_for_each_entry(codec, &bus->codec_list, list) {
2397                 hda_set_power_state(codec,
2398                                     codec->afg ? codec->afg : codec->mfg,
2399                                     AC_PWRST_D0);
2400                 if (codec->patch_ops.resume)
2401                         codec->patch_ops.resume(codec);
2402         }
2403         return 0;
2404 }
2405
2406 /**
2407  * snd_hda_resume_ctls - resume controls in the new control list
2408  * @codec: the HDA codec
2409  * @knew: the array of struct snd_kcontrol_new
2410  *
2411  * This function resumes the mixer controls in the struct snd_kcontrol_new array,
2412  * originally for snd_hda_add_new_ctls().
2413  * The array must be terminated with an empty entry as terminator.
2414  */
2415 int snd_hda_resume_ctls(struct hda_codec *codec, struct snd_kcontrol_new *knew)
2416 {
2417         struct snd_ctl_elem_value *val;
2418
2419         val = kmalloc(sizeof(*val), GFP_KERNEL);
2420         if (!val)
2421                 return -ENOMEM;
2422         codec->in_resume = 1;
2423         for (; knew->name; knew++) {
2424                 int i, count;
2425                 count = knew->count ? knew->count : 1;
2426                 for (i = 0; i < count; i++) {
2427                         memset(val, 0, sizeof(*val));
2428                         val->id.iface = knew->iface;
2429                         val->id.device = knew->device;
2430                         val->id.subdevice = knew->subdevice;
2431                         strcpy(val->id.name, knew->name);
2432                         val->id.index = knew->index ? knew->index : i;
2433                         /* Assume that get callback reads only from cache,
2434                          * not accessing to the real hardware
2435                          */
2436                         if (snd_ctl_elem_read(codec->bus->card, val) < 0)
2437                                 continue;
2438                         snd_ctl_elem_write(codec->bus->card, NULL, val);
2439                 }
2440         }
2441         codec->in_resume = 0;
2442         kfree(val);
2443         return 0;
2444 }
2445
2446 /**
2447  * snd_hda_resume_spdif_out - resume the digital out
2448  * @codec: the HDA codec
2449  */
2450 int snd_hda_resume_spdif_out(struct hda_codec *codec)
2451 {
2452         return snd_hda_resume_ctls(codec, dig_mixes);
2453 }
2454
2455 /**
2456  * snd_hda_resume_spdif_in - resume the digital in
2457  * @codec: the HDA codec
2458  */
2459 int snd_hda_resume_spdif_in(struct hda_codec *codec)
2460 {
2461         return snd_hda_resume_ctls(codec, dig_in_ctls);
2462 }
2463 #endif